21956688

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:381

約数の個数: 120

約数和(自身を含む): 68177928

約数和(自身を除く): 46221240

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 37, 39, 48, 52, 72, 74, 78, 104, 111, 117, 144, 148, 156, 208, 222, 234, 296, 312, 317, 333, 444, 468, 481, 592, 624, 634, 666, 888, 936, 951, 962, 1268, 1332, 1443, 1776, 1872, 1902, 1924, 2536, 2664, 2853, 2886, 3804, 3848, 4121, 4329, 5072, 5328, 5706, 5772, 7608, 7696, 8242, 8658, 11412, 11544, 11729, 12363, 15216, 16484, 17316, 22824, 23088, 23458, 24726, 32968, 34632, 35187, 37089, 45648, 46916, 49452, 65936, 69264, 70374, 74178, 93832, 98904, 105561, 140748, 148356, 152477, 187664, 197808, 211122, 281496, 296712, 304954, 422244, 457431, 562992, 593424, 609908, 844488, 914862, 1219816, 1372293, 1688976, 1829724, 2439632, 2744586, 3659448, 5489172, 7318896, 10978344, 21956688]

約数ペア:

[(1, 21956688), (2, 10978344), (3, 7318896), (4, 5489172), (6, 3659448), (8, 2744586), (9, 2439632), (12, 1829724), (13, 1688976), (16, 1372293), (18, 1219816), (24, 914862), (26, 844488), (36, 609908), (37, 593424), (39, 562992), (48, 457431), (52, 422244), (72, 304954), (74, 296712), (78, 281496), (104, 211122), (111, 197808), (117, 187664), (144, 152477), (148, 148356), (156, 140748), (208, 105561), (222, 98904), (234, 93832), (296, 74178), (312, 70374), (317, 69264), (333, 65936), (444, 49452), (468, 46916), (481, 45648), (592, 37089), (624, 35187), (634, 34632), (666, 32968), (888, 24726), (936, 23458), (951, 23088), (962, 22824), (1268, 17316), (1332, 16484), (1443, 15216), (1776, 12363), (1872, 11729), (1902, 11544), (1924, 11412), (2536, 8658), (2664, 8242), (2853, 7696), (2886, 7608), (3804, 5772), (3848, 5706), (4121, 5328), (4329, 5072)]